AWS SDK：java.lang.NoSuchMethodError

Question

每当我尝试通过AWS SDK发送邮件时，都会出现以下异常：

java.lang.NoSuchMethodError: org.apache.http.params.HttpConnectionParams.setSoKeepalive(Lorg/apache/http/params/HttpParams;Z)V

我在这里得到了一些提示（https://github.com/aws/aws-sdk-java/issues/422）可能出了问题：显然，HttpClient和HttpCore的版本之间存在一些冲突，但无论我尝试哪个版本都无法解决。 .classpath文件的一部分：

<classpathentry kind="lib" path="lib/aws-java-sdk-1.10.69-javadoc.jar"/>
<classpathentry kind="lib" path="lib/aws-java-sdk-1.10.69-sources.jar"/>
<classpathentry kind="lib" path="lib/aws-java-sdk-1.10.69.jar"/>
<classpathentry kind="lib" path="lib/aws-java-sdk-flow-build-tools-1.10.69.jar"/>
<classpathentry kind="lib" path="lib/httpclient-4.3.6.jar"/>
<classpathentry kind="lib" path="lib/httpcore-4.3.3.jar"/>
<classpathentry kind="lib" path="lib/google-http-client-1.18.0-rc.jar"/>
<classpathentry kind="lib" path="lib/google-http-client-appengine-1.18.0-rc.jar"/>
<classpathentry kind="lib" path="lib/google-http-client-gson-1.18.0-rc.jar"/>
<classpathentry kind="lib" path="lib/google-http-client-jackson2-1.18.0-rc.jar"/>
<classpathentry kind="lib" path="lib/google-http-client-jdo-1.18.0-rc.jar"/>
<classpathentry kind="lib" path="lib/httpmime-4.1.3.jar"/

完整的异常堆栈信息打印：

java.lang.NoSuchMethodError: org.apache.http.params.HttpConnectionParams.setSoKeepalive(Lorg/apache/http/params/HttpParams;Z)V
at com.amazonaws.http.HttpClientFactory.createHttpClient(HttpClientFactory.java:96) ~[aws-java-sdk-1.10.69.jar:?]
at com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:187) ~[aws-java-sdk-1.10.69.jar:?]
at com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:136) ~[aws-java-sdk-1.10.69.jar:?]
at com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:120) ~[aws-java-sdk-1.10.69.jar:?]
at com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient.<init>(AmazonSimpleEmailServiceClient.java:165) ~[aws-java-sdk-1.10.69.jar:?]
at com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient.<init>(AmazonSimpleEmailServiceClient.java:145) ~[aws-java-sdk-1.10.69.jar:?]
at com.fieldoo.service.MailService.send(MailService.java:259) ~[classes/:?]
at com.fieldoo.service.MailService.checkAndSendQueue(MailService.java:222) ~[classes/:?]
at com.fieldoo.service.MailService$$FastClassByCGLIB$$ce530a4.invoke(<generated>) ~[cglib-nodep-2.2.jar:?]
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191) ~[cglib-nodep-2.2.jar:?]
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:689) ~[org.springframework.aop-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) ~[org.springframework.aop-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110) ~[org.springframework.transaction-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) ~[org.springframework.aop-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:622) ~[org.springframework.aop-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at com.fieldoo.service.MailService$$EnhancerByCGLIB$$382d8989.checkAndSendQueue(<generated>) ~[cglib-nodep-2.2.jar:?]
at com.fieldoo.controller.ScheduleController.sendEmails(ScheduleController.java:196) ~[classes/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_04]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_04]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_04]
at java.lang.reflect.Method.invoke(Method.java:601) ~[?:1.7.0_04]
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:64) ~[org.springframework.context-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:53) [org.springframework.context-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81) [org.springframework.context-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_04]
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) [?:1.7.0_04]
at java.util.concurrent.FutureTask.run(FutureTask.java:166) [?:1.7.0_04]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178) [?:1.7.0_04]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292) [?:1.7.0_04]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [?:1.7.0_04]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [?:1.7.0_04]
at java.lang.Thread.run(Thread.java:722) [?:1.7.0_04]

这个异常是由以下代码行引起的：

AmazonSimpleEmailServiceClient client = new AmazonSimpleEmailServiceClient(credentials);

其中credentials是AWSCredentials的一个实例。
如果您需要任何其他信息，我很乐意提供。

- peech

---

正如你在发布的链接中所说的那样，检查一下是否有依赖项正在使用较旧版本的httpclient。 - JohnnyAW

Answer 1

确保你的核心版本和S3版本相同。

我曾遇到beforeClientExecution的java.lang.NoSuchMethodError错误。

这个方法对我很有用。

compile('com.amazonaws:aws-java-sdk-core:1.11.376')
compile('com.amazonaws:aws-java-sdk-s3:1.11.376')

- Vikrant Kandgaonkar

Answer 2

我曾经遇到过同样的问题，我的解决方案是升级我的AWS版本。

<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-s3</artifactId>

从<version>1.10.77</version>升级到<version>1.11.192</version>需要修改pom.xml文件。

- Technotronic

Answer 3

尝试使用以下命令获取您项目的Maven依赖树，然后确保AWS SDK Core和S3版本相同。

mvn dependency:tree -Dincludes=com.amazonaws

例子：我的项目依赖树，我正在使用Java 2的AWS SDK。正如您所看到的，核心版本和DynamoDB版本是同步的。

mvn dependency:tree -Dincludes=software.amazon.awssdk

- Raunak Kapoor

Answer 4

我曾经遇到过同样的问题。通过将httpClient的顺序调整为项目中的顶部jar，并在“Project->RightClick->Java BuildPath->Order and Export”中进行设置，我成功地解决了这个问题。

- Jashanpreet Singh